Tinea of vellus hair is an unusual form of superficial skin infection, with a distinct prognosis from ordinary tinea. We report a case of tinea of vellus hair in a 7-month-old infant. Infected hairs were observed by dermoscopy and scanning electron microscopy (SEM). Single nucleotide polymorphism (SNP) detection confirmed the pet cat as a source causing the infection. A literature review was performed to summarize the clinical characteristics of this form of infection.
Keywords: Microsporum canis; dermoscopy; itraconazole oral solution; scanning electron microscopy; single nucleotide polymorphism; tinea of vellus hair.
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